4.37 inch Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, Black Ink Refill Pack of Replaceable Pen Refills Medium Point (6 Pack)

I can’t comment on how long the ink lasts, but this refill fits in my pen that originally used a Itoya NPR-5 rollerball refill. This generic refill produces a nice thin black line with roughly the same ink flow as the original refill. The price is right. If the ink fails too quickly, I will update, but I’m pleased with my purchase.

These 4.37 inch Rollerball Pen Refills offer great value for anyone looking to keep their favorite pens going strong. The 0.5mm fine point delivers smooth, precise writing with every stroke, and the black ink flows consistently without any skipping or blotching. The refills are easy to replace, and the pack provides an excellent quantity for the price, making it cost-effective for those who write a lot or go through refills quickly. The quality is comparable to higher-priced refills, which makes this an even better deal. If you're a fan of rollerball pens and want to stock up on reliable, affordable refills, this pack is a perfect choice.

They leak heavily if not moving fast enough. At first it worked ok, then it starts to let too much ink out. I included pictures of what happens. Now it's leaking all over my pen. Piece of crap

good

Works perfect with yhe pen. Not very smooth though.

work well

They gave a free blue refill which was very nice. However, you get what you pay for. The price is cheap and the refills can get the job done, if you’re on a tight budget and just need at least something to write with. I’m a pen snob and I write a lot so the experience was underwhelming. It is scratchy, not smooth at all, and the ink flow stops every once in while. My hand started cramping after writing half a page, so I will be throwing away this 1st refill and trying another one. Hopefully the others ones are good. I will update my review once I’ve gone through all of them. Update: Only 2 refills was barely passable for me. The other 4 were too scratchy or skips a lot.

Got these to replace the ink cartridges of several of my gel pens. All of the refills were fresh and not dried out. They worked well and the smoothness of the ink was similar to the original refill.

Funzionano perfettamente

Estou usando sem nenhum problema.

Great inks, write exveptionally well, fit my pen (custom built one for me) and surprisingly I enjoy using these inks. I have no faults in them, i do suggest and hope you enjoy them as much as i do, keep in mind the fitting of them pre purchase.

Top Produkt.

El recambio original no se encuentra. y éste por la medida es el que mejor encaja, teniendo en cuenta que es fija su posición sin muelle. la tinta no está mal pero prefiero la original, porque se desliza diferente.